首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1328篇
  免费   3篇
各国政治   89篇
工人农民   28篇
世界政治   59篇
外交国际关系   59篇
法律   890篇
中国政治   5篇
政治理论   199篇
综合类   2篇
  2023年   3篇
  2020年   7篇
  2019年   8篇
  2018年   13篇
  2017年   6篇
  2016年   14篇
  2015年   57篇
  2014年   51篇
  2013年   257篇
  2012年   76篇
  2011年   55篇
  2010年   78篇
  2009年   77篇
  2008年   59篇
  2007年   68篇
  2006年   67篇
  2005年   70篇
  2004年   47篇
  2003年   9篇
  2002年   28篇
  2001年   83篇
  2000年   11篇
  1999年   4篇
  1998年   6篇
  1997年   7篇
  1996年   8篇
  1995年   6篇
  1994年   6篇
  1993年   4篇
  1992年   9篇
  1991年   4篇
  1990年   3篇
  1989年   12篇
  1988年   6篇
  1987年   11篇
  1986年   13篇
  1985年   10篇
  1984年   10篇
  1983年   3篇
  1982年   12篇
  1981年   7篇
  1980年   9篇
  1979年   9篇
  1978年   7篇
  1977年   7篇
  1975年   4篇
  1974年   2篇
  1967年   4篇
  1959年   1篇
  1943年   2篇
排序方式: 共有1331条查询结果,搜索用时 0 毫秒
71.
Journal of Youth and Adolescence - Theory and research indicate considerable changes in parental control across adolescence (e.g., declining behavioral control), but the developmental course and...  相似文献   
72.
This article tests the hypothesis that the attitude towards migration can be understood as a social seismograph for the degree of a society’s degree of democratisation. In this article I present my hypothesis and analyse the constellation of arguments within the public controversy following the so-called refugee crisis in Germany. I work out the internal problematics structuring the three main polarisations in this discourse. Most of the contributions analysed here are interventions rather than academic texts (albeit often authored by academics) making practical suggestions to cope with what they respectively relate to different definitions of crisis. Methodologically, this article is based on a thorough reading of essays and books and their relation to one another, with view to the current conjuncture. Understanding this ‘crisis’ after 2015 requires an approach attentive not only to the different ‘politics of polarisations’ within the public controversy but also to the real and phantasmal dimensions of the crisis. Although the figure of the refugee has began to occupy a central role in the discussion of migration policy, the debate has, I demonstrate, surprisingly little or nothing to do with migration whatsoever, but rather speak to the degree of required democratisation.  相似文献   
73.
What holds society together? In his famous essay The Gift (1925) Marcel Mauss answers this question. However, as this paper shows, he does so not by formulating something like a theory of reciprocity as was often assumed after Claude Lévi-Strauss’ brought forward his structuralist interpretation of Mauss. Instead, the reason why gift practices create obligatory, cohesive social bonds lies in experiences of ?being-possessed“ and self-transcendence. This assumption is proven by means of a new and detailed reading of Mauss’ Essai sur le don as well as by the anti-utilitarian reception of Mauss’ work by the Collège de Sociologie (Georges Bataille, Roger Caillois, Michel Leiris). Overall, Mauss’ theory of the gift features important elements of a theory of posession and self-transcendence which focuses on the dimensions of experience and action. This is why one can discern a certain similarity between Mauss’ and the pragmatist theory of action. Only against that backdrop the social binding force of gift practices can be explained.  相似文献   
74.
The article subjects the research rating of sociology, published in 2008 and carried out by an evaluation group on behalf of the German Science Council, to a secondary analysis. It is shown that the research rating constructs a reality of sociology which does justice neither to the variety of sociological knowledge production nor to its own claim of multidimensionality. Unwillingly, the peer reviewed article has imposed itself as the dominant criterion for assessing the research quality of research units against other types of publication and other activities such as externally funded research, knowledge transfer for practical problem-solving and knowledge diffusion in the public sphere. This preference also affected the assessment of entire research institutions with regard to their impact and efficiency as well as the devaluation of knowledge transfer and diffusion. In this way, sociology is limited to the type of professional sociology, while critical, public and policy-oriented sociology are displaced.  相似文献   
75.
    
Ammonium nitrate fuel oil is an explosive mixture found in most antipersonnel landmines (APL) buried throughout the Colombian territory. During more than 50 years of internal conflict, the Colombian government has found that trained dogs are the most effective method to detect APL. However, the olfactive signature in ANFO is unknown and also if there are differences in detection related to the explosive manufacturing origin. Therefore, this work begins with the analytical validation of the method used to determine ammonia, in its derivatized form as carbamate, released by home-made ANFO using HS-SPME-GC-FID. Once validated, the method was used to identify ammonia and other organic volatile compounds present in ANFO, under laboratory and simulated field conditions. The validation process includes the evaluation of the optimum conditions for the derivation and extraction of butylcarbamate, the determination of the working ranges with linear response in FID, the limits of detection and quantification, the sensitivity, and the precision. The results of the validation established linearity and sensitivity in a concentration between 20 and 120 mg/L, as well as low limits of detection and quantification of 6.4 and 21.4 mg/L, respectively. Also, an intermediate precision of 11% for butylcarbamate with a repeatability of 8%. The validated method showed in real samples of home-made ANFO besides ammonia, the presence of low molecular methylamines, and also exhibited differences in volatile compositions according to the origin. The objective of this work is to offer a reliable analytical methodology for the extraction and analysis of volatile compounds from ANFO.  相似文献   
76.
    
Gunshot residue (GSR) analysis and their interpretation provide crucial information on a criminal investigation involving the use of firearms. To date, several approaches have been proposed for the implementation of a combined sampling and analysis of inorganic (IGSR) and organic GSR (OGSR). However, it is not clear at this stage if concurrent analyses of both types of residue might be detrimental to the analysis of IGSR currently applied in forensic laboratories. Thus, this work aims to compare and evaluate three different protocols for the combined collection and analysis of IGSR and OGSR. These methods, respectively, involve the use of a modified stub (with two halves, one for the detection of IGSR and the other for the analysis of OGSR); the sequential recovery of GSR with two stubs mounted with different adhesives (double-sided carbon tape and Tesa® TACK) and the sequential analysis of IGSR and OGSR from a single carbon stub following carbon deposition. The detection of IGSR was carried out using SEM-EDX, while OGSR analysis was performed using ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS). Obtained results for experiments performed using Geco Sinoxid® ammunition indicated that sequential analysis was the most suitable protocol for the combined collection and analysis of both IGSR and OGSR. A higher number of inorganic (characteristic and consistent) particles and higher concentrations of ethylcentralite, N-nitrosodiphenylamine, diphenylamine, and nitroglycerin were recovered with this method.  相似文献   
77.
The authors wished to study some of the internal psychological dynamics of achievement in a nonpatient identified high school population. Questionnaires were administered to the Grade 13 students and their parents in a large high school. A number of students whose achievement and educational plans were not congruous with their general background were selected for interview. The findings suggest that a wide variety of ages and developmental stages can be discerned as critical points in the development of a student's attitude toward higher education. These students have many values in common, and their values appear related to a positive or negative identification with parental values. The students themselves show a wide range of personality integration. They relate in a special way to a wide variety of teachers' personalities.Received M.D. from University of Alberta, Edmonton, in 1969 and completed specialty training in psychiatry at University of Toronto in 1974. Main interests include psychoanalysis, community psychiatry, and currently antabuse implants.Received M.D. from University of Toronto in 1960, D. Psych. from University of Toronto in 1963, C.R.C.P.(c) in 1965, and F.R.C.P. in 1972. Main interests include adolescent psychiatry, psychoanalysis, psychiatric residency training programs, and mental health delivery systems.  相似文献   
78.
Transborder data flow and technology transfer issues have a substantial overlap. Transborder data flows represent flows of information with economic and/or cultural value. Electronic access to “know-how”, information, data, etc. is becoming more and more important to technology transfer and sharing. National transborder data flow policies either affect or can themselves be technology transfer policies.  相似文献   
79.
Improvement in the ability of universities in the United States to transfer technology to the private sector is seen as a factor in strengthening American competitiveness. To better understand the university's role in this process, a survey of formal university programs in technology transfer was performed through personal interviews at four midwestern land-grant universities. There are six basic types of programs in place: technical assistance, affiliate, licensing, business development, incubators and research parks, and information networks. For purposes of classifying these programs, we used the model developed by Janis et al. (1) It was found that, of the six modes of technology transfer, two could be considered active, three semi-active and one passive.  相似文献   
80.
Das Umweltrecht nimmt in vielfältigen Formen und Verfahren Einfluss auf die Regionalplanung als (Haupt-)Instrument nachhaltiger Regionalentwicklung. Der Beitrag beleuchtet dies unter rechtlichen Aspekten und bezieht hierzu Stellung. Die Kritik richtet sich u. a. auf die Heterogenität umweltrechtlicher Agenden und die eingeschränkte Sanktionierung von Verstößen gegen Vorgaben des Umweltrechts. * Schriftliche Fassung eines Vortrags auf dem Kongress Steuerungsimpulse für eine nachhaltige Regionalentwicklung am 24./25. 11. 2004 in Greifswald. Verf. ist Inhaber eines Lehrstuhls für öffentliches Recht und Geschäftsführender Direktor des Ostseeinstituts für Seerecht, Umweltrecht und Infrastrukturrecht, Universität Rostock.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号